UNIVERSITY OF MRIGE INTERNTIONL EXMINTIONS International General ertificate of Secondary Education *7236314* PHYSIS 625/1 Paper 1 Multiple hoice October/November 28 dditional Materials: RE THESE INSTRUTIONS FIRST Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or H recommended) 45 minutes Write in soft pencil. o not use staples, paper clips, highlighters, glue or correction fluid. Write your name, entre number and candidate number on the nswer Sheet in the spaces provided unless this has been done for you. There are forty questions on this paper. nswer all questions. For each question there are four possible answers,, and. hoose the one you consider correct and record your choice in soft pencil on the separate nswer Sheet. Read the instructions on the nswer Sheet very carefully. Each correct answer will score one mark. mark will not be deducted for a wrong answer. ny rough working should be done in this booklet. This document consists of 2 printed pages. I8 11_625_1/3RP ULES 28 [Turn over
2 1 Two digital stopwatches X and Y, which record in minutes and seconds, are used to time a race. The readings of the two stopwatches, at the start and at the end of the race, are shown. stopwatch X start : end :4 start end stopwatch Y 1:3 2:2 Which statement about the time of the race is correct? oth stopwatches record the same time interval. Stopwatch X recorded 1 s longer than stopwatch Y. Stopwatch Y recorded 1 s longer than stopwatch X. Stopwatch Y recorded 5 s longer than stopwatch X. 2 tennis player hits a ball over the net. P Q R In which position is the ball accelerating? P and Q only P and R only Q and R only P, Q and R ULES 28 625/1/O/N/8
3 car travels at various speeds during a short journey. 3 The table shows the distances travelled and the time taken during each of four stages P, Q, R and S. stage P Q R S distance travelled / km 1.8 3.6 2.7 2.7 time taken / minutes 2 2 4 3 uring which two stages is the car travelling at the same speed? P and Q P and S Q and R R and S 4 What is the meaning of the weight of an object? the density of the material from which it is made the force exerted on it by gravity the mass of the matter it contains the pressure it exerts on the floor 5 The weight of an object is to be found using the beam balance shown in the diagram. object? The object is put in the left-hand pan and various standard weights are put in the right-hand pan, with the following results. weights in the right hand pan effect.1 N,.1 N,.5 N,.2 N balance tips down slightly on the left-hand side.2 N,.1 N,.1 N balance tips down slightly on the right-hand side What is the best estimate of the weight of the object?.27 N.29 N.31 N.58 N ULES 28 625/1/O/N/8 [Turn over
6 student needs to find the density of a cubic block of wood. Which two pieces of apparatus should she use? 4 balance and metre rule balance and thermometer measuring cylinder and metre rule measuring cylinder and thermometer 7 Two identical measuring cylinders containing different liquids are placed on a simple balance. They balance as shown. liquid X volume = 2 cm 3 liquid Y volume = 1 cm 3 How does the density of X compare with the density of Y? 1 density of X = 2 density of Y density of X = density of Y density of X = 2 density of Y density of X = 4 density of Y ULES 28 625/1/O/N/8
5 8 The diagrams show a uniform rod with its midpoint on a pivot. Two equal forces F are applied to the rod, as shown. Which diagram shows the rod in equilibrium? F F F F pivot pivot F F pivot F pivot F 9 train is travelling along a horizontal track at constant speed. Two of the forces acting on the train are shown in the diagram. friction 2 N forwards force from engine 6 N force of air resistance is also acting on the train to give it a resultant force of zero. What is this air resistance force? 4 N backwards 8 N backwards 4 N forwards 8 N forwards ULES 28 625/1/O/N/8 [Turn over
1 The diagram shows water stored behind a dam. dam 6 water turbine generator water The water flows to a turbine and turns a generator. Which sequence for the conversion of energy is correct? gravitational energy kinetic energy electrical energy kinetic energy gravitational energy electrical energy gravitational energy electrical energy kinetic energy kinetic energy electrical energy gravitational energy 11 rubber ball is dropped from a height of 2 m on to a table. Whilst in contact with the table, some of its energy is converted into internal energy. What is the highest possible point the ball could reach after bouncing? height 4 m 2 m ball released from this height table ULES 28 625/1/O/N/8
12 The diagram shows a simple mercury barometer used to measure atmospheric pressure. 7 P mercury Q Which statement is correct? The pressure at P is atmospheric pressure. The pressure at P is nearly zero. The pressure at Q is lower than the pressure at P. The pressure at Q is nearly zero. ULES 28 625/1/O/N/8 [Turn over
13 brick with rectangular sides rests on a table. 8 brick table The brick is now turned so that it rests on the table on its smallest face. How has this change affected the force and the pressure exerted by the brick on the table? force pressure unchanged unchanged increased unchanged unchanged increased increased increased 14 Viewed through a microscope, very small particles can be seen moving with rownian motion. Which line in the table is correct? type of motion of particles particles are suspended in vibration a liquid or a gas vibration a solid, a liquid or a gas random a liquid or a gas random a solid, a liquid or a gas ULES 28 625/1/O/N/8
9 15 The pressure of a fixed mass of gas in a cylinder is measured. The volume of the gas in the cylinder is then slowly decreased. Which graph could show the change of pressure of the gas during this process? pressure pressure time time pressure pressure time time ULES 28 625/1/O/N/8 [Turn over
1 16 Equal masses of two different liquids are heated using the same heater. The graph shows how the temperature of each liquid changes with time. temperature liquid 1 liquid 2 time What does the graph tell us about the liquids? Liquid 1 has a higher melting point than liquid 2. Liquid 1 has a higher boiling point than liquid 2. Liquid 1 starts to melt sooner than liquid 2. Liquid 1 starts to boil sooner than liquid 2. 17 n engineer wants to fix a steel washer on to a steel rod. The rod is just too big to fit into the hole of the washer. steel washer steel rod How can the engineer fit the washer on to the rod? ool the washer and put it over the rod. ool the washer and rod to the same temperature and push them together. Heat the rod and then place it in the hole. Heat the washer and then place it over the rod. ULES 28 625/1/O/N/8
11 18 cup with a lid contains a hot drink. lid hot drink When the lid is removed, the rate of heat loss from the drink increases. What causes this? convection only evaporation only both convection and evaporation neither convection nor evaporation 19 cupboard is placed in front of a heater. ir can move through a gap under the cupboard. wall heater cupboard floor air moves through gap Which line in the table describes the temperature and the direction of the air that moves through the gap? air temperature air direction cool away from the heater cool towards the heater warm away from the heater warm towards the heater ULES 28 625/1/O/N/8 [Turn over
12 2 Waves in a tank pass from shallow to deep water. The wavefront diagram is shown. wavefront shallow water deep water Which quantity increases as the waves enter the deep water? amplitude frequency wave energy wavelength 21 The diagrams represent water waves in a tank. Which diagram represents waves that change speed? barrier barrier barrier deeper water shallower water ULES 28 625/1/O/N/8
13 22 Which diagram shows the dispersion of white light? glass glass white light white light glass glass white light white light 23 In the diagram, the distance OP is the focal length of the lens. Through which point will the ray shown pass, after refraction by the lens? lens O P focal length focal length 24 Which word correctly completes the sentence below? n echo is a sound wave which is by a large obstacle. absorbed dispersed reflected refracted ULES 28 625/1/O/N/8 [Turn over
14 25 In an experiment to measure the speed of sound, a student uses a stopwatch to find how long a sound takes to travel from X to Y. She does this six times. sound travels from X to Y X Y The table shows her results. time / s first.5 second.7 third.6 fourth.4 fifth.9 sixth.5 What value for the time should be used to calculate the speed of sound?.4 s.5 s.6 s.9 s 26 student wishes to demagnetise a steel bar. He uses the apparatus shown. coil electrical supply steel bar Which type of electrical supply should the student use and what should he do with the steel bar? supply what to do with the steel bar a.c. keep it inside the coil a.c. slowly remove it from the coil d.c. keep it inside the coil d.c. slowly remove it from the coil ULES 28 625/1/O/N/8
15 27 Two metal bars are held together. t least one of the bars is a magnet. The bars repel each other. What does this show about the bars and why? what it shows only one of the bars is a magnet two magnets always attract each other only one of the bars is a magnet induced magnetism in the other bar makes it repel they are both magnets there must be like poles facing each other they are both magnets there must be opposite poles facing each other why 28 When there is an electric current in a metal wire, what flows through the wire? atoms electrons neutrons protons 29 The table shows the voltage and current ratings for four electric heaters. Which heater has the least resistance? voltage / V current / 11 5. 11 1. 23 5. 23 1. ULES 28 625/1/O/N/8 [Turn over
16 3 In the circuit below, X and Y are identical 6 V lamps. 6 V X switch Y What happens when the switch is closed (the current is switched on)? X lights more brightly than Y. Y lights more brightly than X. X and Y both light with full brightness. X and Y both light with half brightness. 31 The diagram shows four different circuits. P Q 3 Ω 5 Ω R S 3 Ω 5 Ω 3 Ω 5 Ω What is the order of increasing resistance of these circuits? lowest resistance highest resistance P Q R S R S P Q S P Q R P R Q S ULES 28 625/1/O/N/8
17 32 student makes four circuits. In which circuit are both lamps protected by the fuse? 33 mains circuit can safely supply a current of 4. hairdryer takes 2. It is connected to the circuit by a lead which can safely carry up to 5. Which fuse is best to use in the plug fitted to the hairdryer lead? 1 fuse 3 fuse 1 fuse 5 fuse 34 Two different systems are used to transmit equal amounts of electrical power from one building to another. One system uses low voltage and the other uses high voltage. oth systems use identical wires. Which line in the table is correct about which system wastes least energy and why? least energy wasted why high voltage system the current in the wires is bigger high voltage system the current in the wires is smaller low voltage system the current in the wires is bigger low voltage system the current in the wires is smaller ULES 28 625/1/O/N/8 [Turn over
18 35 When the electric current in wire XY is in the direction shown, there is an upward force on the wire. X current magnet force magnet N S If the north and south poles of the magnet exchange positions, in which direction will the force on the wire act? Y downwards upwards to the left to the right 36 cathode-ray beam passes through an electric field between charged parallel plates. cathode-ray beam + In which direction is the beam deflected? towards the negative plate towards the positive plate into the page out of the page ULES 28 625/1/O/N/8
37 When the thermistor in the circuit below is heated, the lamp becomes brighter. 19 Why does this happen? The resistance of the lamp decreases. The resistance of the lamp increases. The resistance of the thermistor decreases. The resistance of the thermistor increases. 38 The diagram shows an experiment to monitor the radiation from a radioactive gas. The counter readings are corrected for background radiation.. counter radioactive gas The table shows how the counter reading varies with time. time / seconds 2 4 6 8 1 12 14 16 18 counter reading / counts per minute 14 15 82 61 44 36 27 2 15 1 What is the half-life of the gas? between 2 and 4 seconds between 4 and 6 seconds between 6 and 14 seconds between 14 and 18 seconds ULES 28 625/1/O/N/8 [Turn over
39 Which material is commonly used as a lining for a box for storing radioactive samples? 2 aluminium copper lead uranium 238 4 uranium 92 U nucleus emits an α-particle. What are the new nucleon and proton numbers? nucleon number proton number 238 88 236 9 234 92 234 9 Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (ULES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. University of ambridge International Examinations is part of the ambridge ssessment Group. ambridge ssessment is the brand name of University of ambridge Local Examinations Syndicate (ULES), which is itself a department of the University of ambridge. ULES 28 625/1/O/N/8